Place chicken into the bottom of the slow cooker.
Add onion, red bell pepper, and garlic.
Season with salt, chili powder, cumin, paprika, cayenne pepper, sugar, and oregano.
Add tomatoes with green chilies and chicken broth.
Stir in navy beans, black beans, corn, and creamed corn.
Cover and cook on low for 6 hours or high for 4 hours.
Remove the chicken and shred. Add back to the slow cooker.
Right before serving, stir in the heavy cream and sour cream.
Top with tortilla strips and serve!